Tan Lixia, Yu Xianjin, Zhang Lipeng, Yang Ping
J Nanosci Nanotechnol. 2014 Apr;14(4):3233-8. doi: 10.1166/jnn.2014.8595.
The factors that govern the deposition and structure of "waist" ZnO twin rods from aqueous solution through hydrothermal synthesis were discussed in details. Pencil-like ZnO hexagonal twin rods were obtained in Zn(2+) + HMTA system on ITO glass substrates with ZnO buffer layer deposited in advance. As a contrast, a series of experiments were preceded with TBAB or on bare Cu sheet, Zn sheet, and Al sheet to research lattice-match influences on ZnO nucleation. A series of "waist" ZnO hexagonal twin rods were synthesized and the morphology of each "waist" was shown. The forming of different waists results from the different lattice-match effects between substrates and ZnO crystal. We demonstrated ZnO hexagonal twin rods synthesis on Cu, Al, Zn sheet by normal hydrothermal synthesis and revealed different forming schemes of these varying "waists" of the twin structures. On the basis of our research, not only some new ways of synthesizing ZnO twin rods were proposed but a new idea of applying metal to nano-devices used in piezoelectric area.
详细讨论了通过水热合成法从水溶液中控制“腰部”ZnO双棒沉积和结构的因素。在预先沉积有ZnO缓冲层的ITO玻璃基板上的Zn(2+) + HMTA体系中获得了铅笔状ZnO六角形双棒。作为对比，在TBAB存在下或在裸铜片、锌片和铝片上进行了一系列实验，以研究晶格匹配对ZnO成核的影响。合成了一系列“腰部”ZnO六角形双棒，并展示了每个“腰部”的形态。不同腰部的形成是由于基板与ZnO晶体之间不同的晶格匹配效应。我们通过常规水热合成法在铜、铝、锌片上展示了ZnO六角形双棒的合成，并揭示了这些双结构不同“腰部”的不同形成方案。基于我们的研究，不仅提出了一些合成ZnO双棒的新方法，还提出了将金属应用于压电领域纳米器件的新想法。
